Role of three-particle vertex within dual fermion calculations
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DOI: 10.1103/physrevb.96.235127
Abstract: We investigate the influence of self-energy diagrams beyond the two-particle vertex level within dual fermion theory. Specifically, we calculate the local three-particle vertex and construct from it selected dual fermion self-energy corrections to dynamical mean… read more here.
Keywords: self energy; dual fermion; three particle; particle vertex ... See more keywords